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Finding the Fourth Proportional to 7,471.11, 10,310.13 and 4,114.05

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Solution

The fourth proportional to 7,471.11, 10,310.13 and 4,114.05 is: 5,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.11 : 10,310.13 = 4,114.05 : x
  2. Step 2: Convert to fraction form
    7,471.11/10,310.13 = 4,114.05/x
  3. Step 3: Cross multiply
    7,471.11x = 10,310.13 × 4,114.05
  4. Step 4: Simplify right side
    7,471.11x = 42,416,390.33
  5. Step 5: Solve for x
    x = 42,416,390.33/7,471.11
  6. Step 6: Final answer
    x = 5,677.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.